/Engine/Plugins/Runtime/Metasound/Source/MetasoundEditor/Public/MetasoundEditorGraphSchema.h
Sets the object to the specified pin
virtual void TrySetDefaultObject ( [UEdGraphPin](API\Runtime\Engine\EdGraph\UEdGraphPin) & Pin, [UObject](API\Runtime\CoreUObject\UObject\UObject) * NewDefaultObject, bool bMarkAsModified ) const